Here is a system of equations: 7x-4y=-11
7x+4y=-59 would you rather use addition or subtraction to solve this system. Explain your reasoning.

Answers

Answer 1

Answer:

Addition

Step-by-step explanation:

Better to use addition since you already have a -4y and +4y. So if you add them together it will cancel out!

Answer 2

x = -5 and y = -6.

We can use either of the addition or subtraction as both will involve the same process of solving the equation.

We have a system of equations -

7x - 4y = - 11

7x + 4y = - 59

We have to investigate on the process of solving these equations.

What do you mean by System of Linear equations?

A system of linear equations is a collection of one or more linear equations involving the same variables.

According to the question, we have -

7x - 4y = - 11

7x + 4y = - 59

We would subtract second equation from first as follows -

7x - 4y - (7x + 4y) = - 11 - (- 59)

7x - 4y - 7x - 4y = -11 + 59

-8y = 48

y = - 6

therefore -

7x - 4y = - 11

7x - 4(- 6) = -11

7x + 24 = -11

7x = -11 - 24

7x = - 35

x = -5

Hence, x = -5 and y = -6.

We can use either of the addition or subtraction as both will involve the same process of solving the equation.

To solve more questions on System of Linear equations , visit the link below-

https://brainly.com/question/17053411

#SPJ2


Related Questions

PLEASE HELP ILL GIVE BRAINLIEST! IGNORE WHERE IT SAYS 6 POINTS, THATS HOW MUCH ITS WORTH IN THE GRADEBOOK!

Answers

Answer: x = 13

Step-by-step explanation:

They are equal so set them equal and solve for x.

(4x+1) = 53

4x = 52

x = 13

Answer:

Since the lines l and m are parallel,

angle (4x + 1) and angle 53 are both corresponding angles

We know that corresponding angles are equal, so:

4x + 1 = 53

4x = 52

x = 13

Which is the best estimate of 90/7 divided by 1 3/4?

Answers

Answer:

7 17/49

Step-by-step explanation:

Convert mixed numbers to fractions:

= 90/7 ÷ 7/4

Apply the fraction rule:

= 90/7 * 4/7

Multiply fractions:

90 * 4 / 7 * 7

Simplify:

360/49

Convert improper fractions to mixed numbers:

= 7 17/49

51 = 11b – 15
Solve for b

Answers

b= 6 add 15 to 51 then divide by 11

Answer:

x = 6

Step-by-step explanation:

51 = 11b – 15

66 = 11b

b = 6

Find the value of x in the figure given that SU = 70.

Answers

Answer:

5

Step-by-step explanation:

For a continuous random variable X, P(23 ≤ X ≤ 66) = 0.25 and P(X > 66) = 0.14. Calculate the following probabilities. (Leave no cells blank - be certain to enter "0" wherever required. Round your answers to 2 decimal places.)

Answers

Complete question :

For a continuous random variable X, P(23 ≤ X ≤ 66) = 0.25 and P(X > 66) = 0.14. Calculate the following probabilities. (Leave no cells blank - be certain to enter "0" wherever required. Round your answers to 2 decimal places.)

a. P(X < 66)

b. P(X < 23)

c. P(X = 66)

Answer:

P(X < 66) = 0.86

P(X < 23) = 0.61

P(X = 66) = 0

Step-by-step explanation:

Given that:

X, P(23 ≤ X ≤ 66) = 0.25 and

P(X > 66) = 0.14 ;

Recall:

P(x ≤ a) + p(x ≥ a) = 1

Then ; P(X < 0.66) = 1 - 0.14 = 0.86

Hence,

P(X < 0.66) = 0.86

P(23 ≤ X ≤ 66) = 0.25

P(X < 66) = 0.86

Hence,

P(X < 23) = 0.86 - 0.25 = 0.61

Probability that a continuous random variable is exactly equal to a particular number equals 0

Hence,

P(X = 66) = 0

Chris claims that any fraction located between 1/7
1/9 on a number line must have a
denominator of 8. Enter a fraction that shows Chris’ claim is incorrect.

Answers

Answer:

2/15

Step-by-step explanation:

if we multiple 1/7 and 1/9 by 2 we get 2/14 and 2/18. we can then get a fraction in between such as 2/15

PLEASE HELP AS FAST AS YOU CAN ASAP DUE IN 30 MINUTES!!!!

the prism is made up of unit cubes. the side length of the unit cube is 1/4 inch

what us the volume of the prism

A. 3/8
B. 8
C. 24
D. 1/64

please explain as well

Answers

Answer:

C

<$&#&#;#;#;#;#

Step-by-step explanation:

1/4= 4x6=24

Answer:

C

Step-by-step explanation:

describe the steps to determining and graphing a translation.

Answers

Answer:

A TRANSLATION OF A GRAPH is its rigid movement, vertically or horizontally. On the left is the graph of the absolute value function. On the right is its translation to a "new origin" at (3, 4). y = |x|.

$4.30 makeup; 40% discount

Answers

Answer: free makeup

Step-by-step explanation: girl u got it

Answer:

40 percent of $4.30 is $1.72 and the cost of the makeup after the discount would be $2.58

Step-by-step explanation:

you roll three six sided dice. what is the probability that exactly two of the dice are odd?

Answers

Answer:

3C2 * (.5)^2 * (.5)^1

.375

Step-by-step explanation:

...

The probability that exactly two of the dice are odd is 3/8

What is probability?

"It is finding out the possibilities of the occurrence of an event."

Formula to find the probability of an event:

"P(A) = n(A) / n(S)

where, n(A) is the number of favorable outcomes of an event A

n(S) is the total number of outcomes for an experiment"

What is Binomial theorem of probability?

[tex]P=~ ^nC_r\times p^r \times q^{n-r}[/tex]

where, p is the probability of success and q is the probability of failure

For given example,

We roll three six sided dice.

We need to find the probability that exactly two of the dice are odd

the probability of success i. e. dice is odd would be,

⇒ p = 3/6

⇒ p = 1/2

So, the probability of failure would be,

⇒ q = 1 - p

⇒ q = 1 - 1/2

⇒ q = 1/2

Also, n = 3 and r = 2

Using Binomial distribution the required probability would be,

[tex]\Rightarrow P=~ ^nC_r\times p^r \times q^{n-r}\\\\\Rightarrow P=~ ^3C_2\times (\frac{1}{2} )^2 \times (\frac{1}{2} )^{3-2}\\\\\Rightarrow P =\frac{3!}{3!(3-2)!}\times \frac{1}{4} \times \frac{1}{2}\\\\ \Rightarrow \bold{P=\frac{3}{8}}[/tex]

Therefore, the probability that exactly two of the dice are odd is 3/8

Learn more about the probability here:

brainly.com/question/11234923

#SPJ2

For the function h (2) = 9+ 6x , what is the domain of function h if the range is
{-12, -3, 15, 24}?

Answers

Answer:

x = 1/6 (h(2) - 9), h(2) element R

look into the sky and how many stars do u see

Answers

Answer:

its day time rn

Step-by-step explanation:

step by step explanation

I see 1,000 stars that’s how much I see

What is the interquartile range of the following data set?
45, 12, 48, 96, 61, 84, 29, 1,72,5,14
a.45
b.33
c.27
d.60
(apex)

Answers

Answer:

The interquartile range is 60 ⇒ D

Step-by-step explanation:

The interquartile range is the difference between the upper quartile and the lower quartile

Let us explain how to find the interquartile range

Arrange the number from smallest to greatestFind its median Q1 (the middle number in the set of numbers)Find the lower quartile Q1 which is the median of the set of the numbers before the median Find the upper quartile Q3  which is the median of the set of the numbers after the median Subtract Q1 from Q3 the answer is the interquartile range

Let us do these steps to find it

∵ The data set is {45, 12, 48, 96, 61, 84, 29, 1, 72, 5, 14}

→ Arrange them

∴ The data set is {1, 5, 12, 14, 29, 45, 48, 61, 72, 84, 96}

∵ They are 11 numbers

∴ The middle number is the 6th number (5 before it and 5 after it)

∵ The 6th number is 45

The median is 45

→ Find the lower set (before the median)

∴ The lower set is {1, 5, 12, 14, 29}

→ Find the lower quartile Q1

∵ The lower quartile is the middle number in this set

∵ There are 5 numbers

∴ The middle one is the 3rd

∵ The 3rd is 12

Q1 = 12

→ Find the upper set (after the median)

∴ The upper set is {48, 61, 72, 84, 96}

→ Find the upper quartile Q3

∵ The upper quartile is the middle number in this set

∵ There are 5 numbers

∴ The middle one is the 3rd

∵ The 3rd is 72

Q3 = 72

→ Subtract them to find the interquartile range

∵ The interquartile range = Q3 - Q1

∴ The interquartile range = 72 - 12

The interquartile range = 60

20 points!!!
Part A: Solve −mk − 120 > 95 for m. Show your work. (4 points)

Part B: Solve 2c − 9f = 45 for f. Show your work. (6 points)

(20 points)

Answers

Answer:

m= -215/k

f=-5+2c/9

Step-by-step explanation:

in abook 5/8 of the pages have pictures on them given that 70 pages have at least one picture on them work out the total numb in the pages​

Answers

Answer:

112 pages

Step-by-step explanation:

Setup a ratio of 5/8 to 70/x and use the butterfly method to solve the equation and get 112. (I know I'm late)

If x = 3(y+w)– 1, what is the value of w in terms of x and y?

Answers

The answer for that is the second one

I need help fast
please help​

Answers

-2x+5=13
-2x=8
x=-4

(I’m not sure if this is right but this is how I’d go about it)

m∠3 + m∠6 =180° True or False?

Answers

Answer:

False. Because it is the answer.

Answer:

false

Step-by-step explanation:

I agree with the first guy

I need help with homework in GoMath, 5th Grade, Lesson 2.5

Answers

Can you show a photo of the lesson you need help with

Solve the logarithmic equation by writing in exponential form or by graphing.

log (7 − 2x) = −1

Answers

Answer:

10^-1 = 7 - 2x

Step-by-step explanation:

If 3x-y=12, then y/3=?

Answers

Answer:

4

Step-by-step explanation:

Answer:

-4

Step-by-step explanation:

To find what y equals, x has to be 0.

3x-y=12

3(0)-y=12

-y=12        (multiply by -1 so y is not negative)

y=-12

Because y=-12 you need to do -12/3 to get your answer to y/3

-12/3=-4

Students make 82.5 ounces of liquid soap for a craft fair. They put the soap in 5.5​-ounce bottles and sell each bottle for ​$4.50. How much do the students earn if they sell all the bottles of liquid​ soap?

Answers

Answer:

$63

Step-by-step explanation:

Answer:

they made 67.5$

Step-by-step explanation:

82.5÷5.5 is 15 15×4.50 would be 67.5

jana is a graphic designer. She created a poster for her friend’s movie on an 8.5 inches by 11 inches sheet of paper. Her friend’s movie has gotten a lot of publicity, and they want to put Jana’s poster on a billboard that is 12 feet wide and 16 feet high. How can they blow up the poster as much as possible while maintaining the ratio of the sides? a) Determine the length and width of the largest possible poster. b) What is the scale?

Answers

This question is of which class

Y=6x+3

Find slope can anyone give me a step by step

Answers

Answer:

slope is 6/1 (or 6)

Step-by-step explanation:

your y-intercept is 3, so that means the point will be (0,3).

from there, you can start plotting points. up 6, over 1 (to the right)

the equation for a line is y=mx+b, so whatever number is in m will always be your slope, and whatever number is in b will be your y intercept

Please Help ASAP PLEASE !!!!!!!
Which mathematical property is demonstrated?


If y=−7 and −7=z, then y = z.



A. symmetric property of equality



B. closure property of multiplication



C. closure property of addition



D. transitive property of equality

Answers

Answer:

transitive property of equality

Step-by-step explanation:

I know cus i took the test also sorry it took so long dude

Taylor is driving on the freeway at 55 miles per hour. What question finds her distance

Answers

Answer:

distance(miles) = number of hours driven * 55

Step-by-step explanation:

13)
24 + f = 54
Show some work

Answers

Answer: 30

Step-by-step explanation:

24 + f = 54

f = 54 - 24

f = 30

Answer:

f=30

Step-by-step explanation:

You want to get x by itself on one side, so in order to do that, you need to subtract the 24, and if you do it one side, you need to do it to the other side.

That would give you:

24-24+f=54-24

then simplify it to be:

f=30

PLEASE HELPPPP I WILL MAKE YOU THE BRANILEST The value of x and y are proportional. Find the Constant of Proportionality (k) and find the missing values. Explain in writing under each rate table.



X
9


5


y
36
16


8

Answers

I have no clue I think your in a higher grade than me sorry couldn’t help you

If (-8, 3) is reflected across the x-axis the new point would be

Answers

Answer:

(-8, -3)

Step-by-step explanation:

Simplify -9/6 divided by -3/2

Answers

-9/6 divided by -3/2 is equal to -9/6 times -2/3.
An negative times a negative is a positive
So the new prob is 9/6 times 2/3
you multiply across and you get 18/18
18/18 is equal to 1
there’s you answer hope it helps ✨
Other Questions
jessica has 56 arcade tickets to give away she gives them all to her 8 friends who share them equally how many tickets does each friend get? NEED ANSWER STATA theme park costs $25.00 to enter. One of the food stands within the park sells hot dogs for $2.50 each and hamburgers for $3.50 each. If Paul enters the park, walks to the food stand, and purchases hot dogs and hamburgers, the amount of money he spends can be modeled by the expression below.2.5d+3.5b+252.5d+3.5b+25Which of the following are correct interpretations for parts of this expression? Choose ALL that apply.A. 2.5d represents the cost of entering the park B. 2.5d represents the cost of purchasing d hot dogs C. 2.5d represents the cost of purchasing d hamburgers D. 3.5b represents the cost of entering the park E. 3.5b represents the cost of purchasing b hot dogs F. 3.5b represents the cost of purchasing b hamburgers G. 25 represents the cost of entering the park this typology refers to non-physical spaces createb by the devolopment of technology The Moon is 240,000 miles away from the Earth. What prediction canyou make about the tides if the distance between the Earth and Moonwere to decrease? What two ideas were rejected in the Haitian Declaration of Independence? A) religion and monarchy B) french colonialism and slavery C) democracy and liberty D) capitalism and industry 5xy + 35xy + 50 xyHELP ME FACTOR THIS PLEASE!!! -What does it means Government as Contract?Another effect of the Great Awakening on colonial culture was the growth of the notion of the state (country) as a contract with the people. Parishioners during the revival gained an understanding of covenant/contract with their churches; they argued that each believer owed the church their obedience, and churches, in turn, owed their congregants the duty to be faithful to the Gospel. Parishioners, therefore, reserved the right to dissolve the covenant and to break ties with the church without prior permission. This notion of a covenant was a popular one in Puritan society and reflected a common/same biblical understanding of association. Present in the Mayflower Compact and later forming an ideological basis for breaking from Great Britain, the notion of covenant grew to link religion and politics in the colonies. The Ideals/beliefs of Puritanical covenant theology were manifested/showed in the Social compact of the Declaration of Independence . Under this belief, implicit/ hidden in the Declaration, disassociated/separation individuals in the state of nature agree to live and to be bound together under the same government. With the frequency by which believersbroke away from larger churches to form splinter groups, the colonists must have been accustomed to separating themselves from larger institutions/organizations such that of the king. What is the difference between a species, a population,and a community A student redid the experiment of mixing room-temperature water and warmwater. This time, she doubled the amount of room temp water. How will the finaltemperature be different?A- It will be higher, because the amount of water in the mixture is greater.B-It will be lower, because the temperature of the room-temperature water will not increase as much.C-It will be the same because all parts of the mixture will end up at the same temperature.D-It will be higher, because all parts of the mixture will end up at the same temperature. ez branliest5 outlets13 outlets20 outlets30 outletsvvvvJamal works as an electricians apprentice. He rewired 4 electrical outlets in 1 and one-halfhours. If he works at the same pace for 7.5 hours, how many outlets will he rewire? 5 outlets13 outlets20 outlets30 outletsJamal works as an electricians apprentice. He rewired 4 electrical outlets in 1 and one-halfhours. If he works at the same pace for 7.5 hours, how many outlets will he rewire? 5 outlets13 outlets20 outlets30 outletsJamal works as an electricians apprentice. He rewired 4 electrical outlets in 1 and one-halfhours. If he works at the same pace for 7.5 hours, how many outlets will he rewire? 5 outlets13 outlets20 outlets30 outlets Help! What do you think is the best choice??? Question 3 of 27How did the Regents of the University of California v. Bakke Supreme Courtdecision affect affirmative action programs in the United States?A. It outlawed them for white Americans but not for AfricanAmericans.B. It required them to be used in public universities but not in privatebusinesses.O c. It ruled them unconstitutional but did not establish a lastingprecedentD. It placed restrictions on them but did not outlaw them completely.SUBMIT 6x + 2 = 5x + 17, would there be one unique solution? What is it? find the midpoint (-6,-10) (-2,-8) The media include forms of communication that:A. convey information.B. manipulate an audience.C. uses only images.D. create emotional responses. Describe the factors that gave European countries an economic advantage in Asia from 1750 to 1900? Which expression is equivalent to .... How do you do this question? Helpppppp wil give bralistttttt A chimpanzee and a pine tree have very little in common. However, because they are both living things, we can be certain that they both -use the sunlight to make their own food.travel with other members of their species.are made up of one or more cells.have a skeleton which allows them to move.